Human Identifications using Micro-Doppler Signatures

Y. Yang and C. Lu (USA)

Keywords

Micro-Doppler, target ID, signal processing, radar
imaging.

Abstract

Micro-motions, such as vibrations or rotations of an
object or structures on the object, induce additional
frequency modulations on returned radar signal, which
generates sidebands about the object’s Doppler frequency,
called micro-Doppler effect [1-5]. Human activities,
which consist of various moving body parts, will generate
unique micro-Doppler signatures [6]. Using time
frequency transforms and pattern recognition techniques,
we can classify individuals based on their movements
using micro-Doppler signatures [7]. Preliminary results
from a laboratory model of the micro-Doppler radar with
carrier frequency of 10 GHz are reported in this paper.
The results show that micro-Doppler signatures have
great potential for use in human identification
applications.